CVE-2021-43395
MEDIUMillumos <f859e7171bb5db34321e45585839c6c3200ebb90 - Info Disclosure
Title source: llmDescription
An issue was discovered in illumos before f859e7171bb5db34321e45585839c6c3200ebb90, OmniOS Community Edition r151038, OpenIndiana Hipster 2021.04, and SmartOS 20210923. A local unprivileged user can cause a deadlock and kernel panic via crafted rename and rmdir calls on tmpfs filesystems. Oracle Solaris 10 and 11 is also affected.
References (9)
Core 9
Core References
Release Notes, Third Party Advisory
http://www.tribblix.org/relnotes.html
Exploit, Third Party Advisory
https://github.com/illumos/illumos-gate/blob/069654420de4aade43c63c43cd2896e66945fc8a/usr/src/uts/common/fs/tmpfs/tmp_vnops.c
Exploit, Third Party Advisory
https://github.com/illumos/illumos-gate/blob/b3403853e80914bd0aade9b5b605da4878078173/usr/src/uts/common/fs/tmpfs/tmp_dir.c
Patch, Third Party Advisory
https://github.com/illumos/illumos-gate/commit/f859e7171bb5db34321e45585839c6c3200ebb90
Vendor Advisory
https://illumos.topicbox.com/groups/developer/T1c9e4f27f8c2f959/security-heads-up-illumos14424
Third Party Advisory
https://jgardner100.wordpress.com/2022/01/20/security-heads-up/
Third Party Advisory
https://kebe.com/blog/?p=505
Issue Tracking, Patch, Vendor Advisory
https://www.illumos.org/issues/14424
Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html
Scores
CVSS v3
5.5
EPSS
0.0003
EPSS Percentile
10.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-667
Status
published
Products (6)
illumos/illumos
< 2022-01-18
joyent/smartos
20210923
omniosce/omnios
r151038
openindiana/openindiana
hipster_2021.04
oracle/solaris
10
oracle/solaris
11
Published
Dec 26, 2022
Tracked Since
Feb 18, 2026